diff --git a/README.rst b/README.rst
index 6bd35a4..3cf2a4b 100644
--- a/README.rst
+++ b/README.rst
@@ -1,4 +1,4 @@
-|codecov| |BuildStatus|
+|codecov| |BuildStatus| |DocStatus|
 
 
 *****
@@ -106,4 +106,6 @@ favourite web search.
    :target: https://codecov.io/gh/laszukdawid/PyEMD
 .. |BuildStatus| image:: https://travis-ci.org/laszukdawid/PyEMD.png?branch=master
    :target: https://travis-ci.org/laszukdawid/PyEMD
+.. |DocStatus| image:: https://readthedocs.org/projects/pyemd/badge/?version=latest
+   :target https://pyemd.readthedocs.io/
 .. |simpleExample| image:: https://github.com/laszukdawid/PyEMD/raw/master/PyEMD/example/simple_example.png?raw=true
diff --git a/requirements.txt b/requirements.txt
index 08190a3..1e4e581 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 numpy
+numpydoc
 scipy>=0.19
 matplotlib